Baling-press.



- Patented July 4, |899. c. HAnnlNGToN.

No. 628,0nl.

BALING PRESS.

(Application led Jan. 3, 1899.)

3 Sheets-Sheet l.

(No Model.)

- Patented .luly 4, |899. C.- HARRINGTON.

BALING PRESS.

(Application led Jan. 3, 1899.)

3 Sheets-Sheet 2`,

(No Model.)

WHW-asses No. 628,001. i Patented July 4, |899. c. HARBINGTUN.

BALING PRESS.

(Application med un. a, 1899.)

3 Sheets-Sheet 3.

No Model.)

m l l TNs'Nonms PETERS co4 PHoYuLxYHo., wAsHmGToN. n. c.

UNTTED STATES PATENT EEICE.

CHARLES HARRINGTON, OF BARTLTT, TEXAS, ASSIGNOR OF ONE-HALF TO EDWARDROWNTREE, OF SAME PLACE. i

BALlNG-PRESS.

SPECIFICATION forming part of Letters Patent No. 628,001, dated July 4,1899.

Application filed JanuaryS, 1899. Serial No. 701,006. (No model.)

To all whom it may concer/t.-

Beit kn own that I, CHARLES HAERINGTON, a citizen of the United States,residing at Bartlett, in` the county of W'illamson and State of Te'Xas,have invented a new and useful Baling-Press, of whichthe following is aspecification.

My invention relates to baling-presses of that class especially designedfor baling hay and also adapted for use in baling other analogousmaterials; and the object in view is to provide a simple, compact, andeflicient pl anger-operating mechanism or power adapted for driving aplurality of plungers in a corresponding number of baling-chambers, suchdriving mechanism being so constructed as to accomplish the full reboundof each plunger preparatory to a forward or baling stroke irrespectiveof the reboundl of the plunger due to the expansion of the baledmaterial, the parts being so constructed and related as to reduce thefactor of friction to the minimum, and thus attain efficiency ofoperation with the minimum power applied to the driveshaft.

Further objects and advantages-of this invention willappear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective view of' a baling-press ofthe plural or double chamber type constructed in accordance with myinvention. Fig. 2 is a side View of the plungeroperating mechanism, oneof the plunger-rodsV being shown approximately at the limit of its.forward or operative stroke and the other approximatelyat the limit ofits rearward or return stroke. Fig. 3 is' a vtransverse vertical sectionof the machine upon the plane indicated by the line 3 3 of Fig. 2,showing the plunger-operating mechv anism in rear elevation. Fig. il isa vertical longitudinal section of the plunger-operating mechanism onthe plane indicated by the line 4 4 of Fig. 8. Fig. 5 is a similar viewtaken upon the plane indicated by the line 5 5 of Fig.3. Fig. 6 is adetailed view in perspective of one of the main trip-cams detached. Fig.7 is a similar view ofthe auX- iliary trip-cam which is used inconnection Fig. 8 is a deall of the ordinary or any preferredconstruction. The plunger rods or stems l5 are provided with cross-heads16, mounted upon guides 17, which may be slotted, as shown at 18, toreceive a depending tongue 19, upon which is mounted a bearing-roller 20to traverse the adjacent side beam of the supporting-frame, whereby thefriction due to the thrust of the operating members, as hereinafterexplained, is reduced to the minimum. Pivotally connectedto the tongue19 and preferably mounted upon the spindle of the antifriction-roller 2Ois a return-rod 2l, provided at its extremity with a projectionV or pin22, the return-rod extending through a suitable guide 23, supported bythe frame 1,

and being adapted to reciprocate with the plunger rod or stem and alsobeing adapted through its pin 22 to receive a return impulse forwithdrawingthe plunger after each forward stroke thereof preparatory tothe succeeding forward stroke.

Erected upon the supporting-frame, preferably near the front endthereof, is a powerframe having main uprights 24, connected by across-bar 25, andv also including` auxiliary uprights 2t', which areparallel with the main uprights and are spaced iu ward therefrom, asshown clearly in Fig. Mounted in transversely-alined bearings in theuprights 24: and 26 are crank-shafts 27, provided at their inner endswith bevel-gears 28, with which meshes the drive-gear 29, carried by adrive-shaft 30, which is mounted vertically in a bearing-in thecross-bar 25. vAny suitable means-may be employed for communicatingrotary mo- IOO tion to the drive-shaft 30, but in the drawings I havedeemed it sufficient to illustrate an operating-lever 31. It is obviousthat the rotation of the drive-shaft 30, which is adapted for continuousmotion in a uniform direction, will communicate rotary motion inopposite directions to the crank-shafts 27, and through crank-heads32,carried by said crank,- shafts at their outer ends, motion is commnnicated to the pitmen 33, which are pivotally connected, as at 34, tothe cross-head 1G, it being understood that the cross-head, guide,return-rod, and cooperating parts are duplicated to correspond with thenumber of baling-boxes employed in the machine.

Each crank-head consists of parallel outer and inner cheeks or plates 35and 3G, connected by transverse bolts 87, and t-he outer cheek or plateis provided with a cam-guide 38, which in the construction illustratedconsists of a slot disposed obliquely with relation to the length of thecrank-head and terminatingin seats S9, facing in opposite directions,for the reception of a shifting or movable wrist-pin 40, which operatesin the guide-slot. In practice I prefer to provide each wrist-pin withan antifriction-sleeve 41,'which is interposed between the head 42 ofthe wrist-pin (and which operates between the inner and outer cheeks ofthe crank-head) and the inner or adjacent surface of the pitman 33,

` whereby in operation the frictional contact `of the wrist-pin intraversing the main portion of the guide between the terminal seats 39is reduced to the minimum.

As above indicated, the driven shafts 27 rotate in opposite directions,due to the engagement of a single drive-gear 29 with the receiving ordriven gears 28, and therefore the crankarms operate in reverse oropposite directions, and in order that each wrist-pin may be effectually positioned in one of the terminal seats of the cooperatingcrank-arm during the forward movement of the connected plunger it willbe seen that the seats 30 must face forward or in the direction ofmovement during the operation of the mechanism. The wristpin of one ofthe pitmen, however, is positioned in the upper seat of the cooperatingcrank-arm during the forward or return movement of said pitman, whilethe wrist-pin of the other pitman is positioned in the seat at the lowerend of the operating crank-head during the forward or operative movementthereof; but owing to the bearing-rollers 20 the thrust due to theinclination of the pitmen is prevented from causing undue frictionbetween the cross-head of the plunger tion of said trip-arm being toapply return pressure to the pin, and thus actuate the return-rod 23 towithdraw the connected plun-v ger after each forward stroke preparatoryto the succeeding stroke. In the construction illustrated the trip-armsare hingedly mounted upon securing-plates 4G, arranged in contact withthe cross-bar 25 of the power-frame, said secu ri lig-plates beinglongitudinally slotted, as shown, for engagement by screws or bolts 47,whereby longitudinal adjustment of the securing-plates may be attainedto vary the pivotal points of the trip-arms to suit the positions of thetrip-arm-operating elements of the mechanism, as hereinafter set forth.

The trip or return arm operating mechanism as I prefer to construct itconsists of trip-cams 48, having collars embracing and suitably securedto the driven shafts 27 and having arms 49 for successive contact withthe trip-arms 43 or preferably with projections 50 from said arms, thearms 49 in the construction illustrated being provided withantifriction-rollers 51 to traverse the surface of the projection 50,while imparting return movement to the trip-arms 43. While at one sideof the power mechanism the main tripcam 48, as above described, mayoperate di'- rectly upon the projection 50 of the trip-arm 43, at theother side of the mechanism, where the driven shaft 27 turns in thereverse direction, it is preferable in order to maintain a uniformconstruction of trip-arm 43 to interpose an auxiliary trip-cam 52, alsohaving a barrel or sleeve mounted upon a suitable pivot-pin 53, carryinga cam-faced ear 54 for engagement successively by the arms 49 of themain trip-cam, and also provided with an arm 55 for contact with theprojection. 50 of the trip-arm, said arm 55 being provided 'with anantifriction-roll 56.

In operation continuous rotary motion in a uniform direction iscommunicated to the driving-shaft 30 to impart rotary motion in oppositedirections to the driven shafts 27. This causes the movement of thecrank-heads in the directions indicated by the arrows in Fig. 2 whilethe near or adjacent crank-head is approaching the completion of itsmovement in advancing the connected pitman 33. As the motion of saidnear or adjacent crank-head proceeds the wrist-pin will be free to leavethe seat'39, in which it has been arranged, and simultaneously therewithone arm of the coperating main trip-cam 4S will come in contact with theprojection 50 of the adjacent trip-arm 43, said relation of parts beingindicated in Fig. 5,where the said arm of the main trip-cam is about toengage the projection 50. The continued movement of the crank-arm,therefore, will impart swinging movement to the tri p-arm to bring thepressure-iinger 44 thereof into contact with the pin 22, and thus impartreturn movement to the plunger, and this return movement will continueuntil the arm 49 of the trip-cam leaves the projection 50, whereupon thetrip-arm will return toitsnor- IOO` IIO

mal pendent position. (Indicated in Fig. 5.) In Fig. 4 is shown theposition of the trip-arm as it approaches the limit of its plunger-refturning movement; but in said Fig. 4 I have illustrated the other memberof the operating mechanism from that which is illustrated in Fig. 5, or,in other words, that member wherein Ythe intermediatel auxiliarytrip-cam 52 is employed. The operation in this portion of the mechanismis analogous to that just described in that as the connected pitmanapproaches the limit of its forward or baling stroke, and thusapproaches that position at which the attached wrist-pin will bereleased from the seat in which it has been fittedyan arm of themain-trip-cam will come in contact with the arm 5l of the auxiliarytripcam to communicate motion, through thearm 55, to the projection 50of the adjacent triparm, and when the trip-arm has been swung outwardfrom the plane of the supportingframe a suiiicient distance to returnthe plunger to its normal or initial position the arm 55 will releasethe projection 50 and allow the trip-arm to return to its normal pendentposition. It will be seen that with the construction illustrated twoforward strokes are imparted to each plunger during one completerevolution of each driven shaft, and at the limit of each forward orbaling stroke the plunger will be positively returned by mechanicalmeans to its initial position preparatory to the succeeding stroke. Astop 57 may be arranged in the path of operative movement of theauxiliary trip-cam to limit the swinging movement thereof, and in orderthat the auxiliary trip-cam may be returned after each operativemovement to a position preparatory to a succeeding engagementV by themain trip-cam the armr55 and the projection 50 may be made of suchrelative lengths that the former does not at its extremity leave thesurface ofthe latter, as will be seen by reference to Fig. 4, butremains in such a po- -sition that when the auxiliary cam is released bythe main cam the weight of the trip-arm 43 will operate to return theauxiliary cam to its initial position..

It will beunderstood in practice that various changes in the form,proportion, and the minor details of construction may be resorted towithout departing from the -spirit or sacrificing any of the advantagesof the invention.

Having described my invention, what I claim isl. In a baling-press, thecombination with plungers, and means for imparting forward or balingmotion thereto, and for releasing the same at the limit of their forwardor baling motion, of reciprocatory return elements connected with theplungers, oscillatory triparms for contact with said return elements,oppositely-revoluble main trip-cams actuated by the plunger-operatingmeans, one of said trip-cams being adapted for periodic contact with atrip-arm to impart plunger-returning movement thereto, and an auxiliarytrip-cam actuated by the other main trip-cam, and

adapted for periodic contact with the other trip-arm, substantially asspecified.

f3. In a baling-press, the combination with a plunger, and means for imparting forward or baling motion thereto, and for releasing the same atthe limit of its forward or baling motion, of a return-rod operativelyconnected with the plunger and provided with a bearing-pin, anoscillatory trip-arm adapted for contact with said bearing-pin to impartmotion in one direction to the return-rod, and a ing-pin, an oscillatorytrip-arm arranged for contact with said bearing-pin and provided with arearwardly-extendingprojection, and a continuously-operated rotarytrip-cam, actuated by the plunger-operating means, and provided with anarm for periodic contact with said projection of the trip-arm, to impartplunger-returning movement thereto, substantially as specified.`

at. In a baling-press, the combination with reciprocatory plungers, ofplunger-operating mechanism consisting4 of shafts mounted for rotationin opposite directions and operatively connected respectively with theplungers, means for communicating motion to said shafts, saidconnections being adapted to release the plungers at the limits of theiradvance movements, return-rods operatively connected respectively withthe plungers and provided with bearing-pins, oscillatory triparmsarranged in operative relation with said bearing-pins and provided withrearward projections, trip-cams carried respectively by said shafts, theprojection of one of said triparms being arranged in the path of an armof one of the main trip-cams, and an auxiliary trip-cam having abearing-ear arranged in the path of an arm of the other main trip-cam,and having an arm in the path of which said projection of theothertrip-arm is arranged, substantially as'specitied.

5. In a baling-press, the combination with a plunger, andplunger-operating mechanism including a shaft, of a return-rodoperatively connected with the plunger and provided with a bearing-pin,a trip-arm adapted for periodic contact with said bearing-pins toimpartplunger-returning movement to said return-rod, an adjustablesecuring-plate upon which said trip-arm is pivotally mounted forswinging movement, means for fastening said securingplate at the desiredadjustment, and an armed trip-cam carried by said shaft for periodiccontact with a projection on the trip-arm, the

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adjustment of said securing plate being adapted to Varythe relation ofthe pivotal point of the trip-arm With the axis ot' movement of thetrip-cam, substantially as specilied.

6. In a Daling-press, the combination with a supporting-frame,baling-chambers, and re ciprocatory plungers arranged in the chambers,of plunger-operating mechanism having oppositely revoluble coaxialdriven shafts carrying crank-heads, a single driving-shaft operativelygeared with said driven shafts, shifting Wrist-pins mounted upon saidcrankheads and adapted to occupy positions at opposite sides of the axesof the driven shafts, said crank-heads being provided with spaced seatsfor engagement with the Wrist-pins to impart plunger-advancing movementto said pins, cross-heads 16 connected with the plungers for movementtherewith, guides parallel with the paths of the plungers upon whichsaid cross-heads are mounted, pitmen con-` oHAs. HARRINGTON. IVitnesses:

J. T. DILLARD, B. D. MCKINZIE.

